INTSAMPLES-117 Remove cache-sessions - FTP Sample

Compatibility with SI 3.0; also bump to 3.0.0.M3.
INTSAMPLES-121: Upgrade to SI 3.0 and SPR 3.2.6

JIRA: https://jira.springsource.org/browse/INTSAMPLES-121
Enable Intermediate modules

Ignore MS & Oracle tests
INTSAMPLES-125/126:SF 3.2.7, SI 3.0.1; Schemas

JIRA: https://jira.springsource.org/browse/INTSAMPLES-125

Polishing some poms and enable all modules

INTSAMPLES-126: Fix XSD versions vulnerability

JIRA: https://jira.springsource.org/browse/INTSAMPLES-126

Polishing

Add dummy JUnit to monitoring "test".
Change Maven Repos to spring.io